WO1992003016A2 - Camera panoramique du type a transfert de charges dans un systeme de veille - Google Patents
Camera panoramique du type a transfert de charges dans un systeme de veille Download PDFInfo
- Publication number
- WO1992003016A2 WO1992003016A2 PCT/FR1991/000642 FR9100642W WO9203016A2 WO 1992003016 A2 WO1992003016 A2 WO 1992003016A2 FR 9100642 W FR9100642 W FR 9100642W WO 9203016 A2 WO9203016 A2 WO 9203016A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- photodetector
- camera
- charges
- row
- image
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/70—SSIS architectures; Circuits associated therewith
- H04N25/71—Charge-coupled device [CCD] sensors; Charge-transfer registers specially adapted for CCD sensors
- H04N25/711—Time delay and integration [TDI] registers; TDI shift registers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/78—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic or electromagnetic waves, or particle emission, not having a directional significance, are being received using electromagnetic waves other than radio waves
- G01S3/782—Systems for determining direction or deviation from predetermined direction
- G01S3/783—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived from static detectors or detector systems
- G01S3/784—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived from static detectors or detector systems using a mosaic of detectors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/20—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from infrared radiation only
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/20—Circuitry of solid-state image sensors [SSIS]; Control thereof for transforming only infrared radiation into image signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/70—SSIS architectures; Circuits associated therewith
- H04N25/71—Charge-coupled device [CCD] sensors; Charge-transfer registers specially adapted for CCD sensors
Definitions
- the present invention relates to the field of permanent surveillance of a 360 ° field of observation or of a sector using a panoramic camera and, more precisely, it relates to a detection method, a camera - > for its implementation, and a panoramic standby system equipped with such a camera operating in visible light or in infrared.
- a panoramic camera usually delivers a signal from information supplied by an integration of 0 charges during a continuous scanning of the observation field over a sector which can go up to 360 °; the frame rate, which can be defined by the analysis time of this sector by integration of charges, differs from that of a video type signal (for example, charge integration time: 540 ⁇ s and "classical period video frame: 64 ⁇ s).
- a camera represented schematically in FIG. 1, is mainly daring:
- a photodetector module consisting of a linear array b of p photodetector cells associated respectively with p stages, E- to E, of a shift reading register R delivering a signal at an output 5 through an amplifier A;
- a transfer clock circuit 6 delivering the clock pulses necessary for the bar b and associated with a circuit 4 for analyzing the speed of rotation of the bar so as to transfer the charges in synchronism with the rotation from bar b: -
- a mechanical drive device (not shown) producing a rotational movement of a support with a vertical axis, for example a turret 7, on which is installed the optical system / photodetector assembly.
- the operation of such a camera is conditioned by the values of duration parameters.
- the duration separating two successive analyzes of the same part of space is given by the rotation period T. It should be short, on the order of a second, to allow objects to be detected quickly
- the photodetector bar b is periodically worn in charge integration during an integration time T .. During this period, the quantity of charges integrated in the silicon substrate with regard to each cell is
- the synchronization clock circuit supplies signals for controlling the transfer of charges from stage to stage up to output 5.
- the object of the invention is to overcome these drawbacks by proposing a detection method and a camera for its implementation intended for:
- the photodetection method for panoramic camera comprising a photodetector system composed of n rows? s of photosensitive cells and a shift reading register, a vertical axis support for this photodetector system of a cylindrical turret, a focusing optical system for focusing the image of a sector of the field of observation on a strip extending from top to bottom of the turret over a width of row of cells, a mechanical system of drive of the optical system / photodetector system in rotation, is characterized in that the charges of each pixel of the row coinciding with said strip are integrated and in that the charges of a row are transferred to the adjacent row which comes in coincidence with the same image strip, and so on up to the n row, in synchronism with the speed of rotation of the turret.
- the apparent duration dti integration time of the charges is multiplied by a factor n without increasing the real value of this integration time
- FIG. 5 the organization of all the circuits and elements of the camera according to the invention
- TDI mode for "Time Delay and Integration” meaning: integration in deferred time.
- TDI mode provides cumulative charge transfer and is applied in planar imagers.
- a plane imager in TDI mode is constituted by the juxtaposition of N photosensitive linear bars arranged in line and made up of P elementary cells each defining a pixel; the charges integrated in each of the pixels of a given line, with an integration time of 19 or 20 ms, are transferred synchronously, in each of the pixels of the adjacent line located opposite, and so on to the register of horizontal shift reading 8, the register being read every 64 ⁇ s.
- the quality of the image very significantly depends on the synchronism between the charge transfers, managed by a generator of clock circuits 9, and the scrolling of the imager, the direction of which is indicated by the arrow F, relative to the scene analyzed: the speed of travel of the optical image in the plane of the imager must therefore be perfectly stabilized so that the electronic image follows synchronously the changes in this optical image.
- the panoramic camera must be able to operate in visible or infrared mode
- the structure of the planar imager imposes a vertical scrolling of the image of the scene observed.
- the photodetector system rotates horizontally and is consequently carried by a turret with a vertical axis of rotation;
- the timing of the planar imager in particular a charge integration time that is far too long (at least 200 times), is absolutely not suitable for use of the panoramic camera type;
- the method according to the invention makes it possible to integrate the principle of the cumulative transfer of charges in a panoramic camera. It consists :
- the method according to the invention can be completed by a third step which consists in comparing the values of the luminance levels successively received by the photodetector system, the values being compared at each point of the space observed for a focusing of the same height, and to trigger an alarm when a correlation between these different values appears.
- FIG. 3 a first embodiment of a panoramic camera is shown in FIG. 3. It includes a DTC type surface sensor (device with charge transfer) composed of n columns of p photodetector cells b _. ,. . . , b, arranged vertically in a column on a turret 7 with a vertical axis, and a reading register R also vertical.
- DTC type surface sensor device with charge transfer
- the DTC surface sensor chosen to work in panoramic must have a timing such that it can operate in TDI mode, that is to say the timing described above for the plane imager operating in TDI mode; however, to function thus, that is to say by integration by row or by column, the surface sensor must meet two conditions: having a photosensitive zone capable of containing all the information of the same image;
- TDI is done column by column by transfer in the memory areas and the reading is done by vertical shift of the charges accumulated in the reading register.
- the analyzed observation sector is projected onto a zone successively covering each of the columns b., To b of photosensitive cells by means of an optical focusing system 11 fixed to the turret 7 and consisting, for example, of a cylindrical lens.
- the charges integrated in the silicon substrate, opposite each pixel of a column b. data, are transferred simultaneously into the silicon substrate located opposite each pixel of the same rank in column b. + 1 adjacent.
- the speed of rotation of the turret 7 is such that the transfer of the charges from one column to the other is carried out in synchronism with the travel in opposite direction of the columns, so that the integrated charges accumulate on the focusing zone of the same sector observed. More precisely : - in the case of an interline type sensor, the clock generator must ensure a double synchronism: the transfer of the charges integrated into the blind memory registers and the addition of the information by transfer of the charges from register to register to the register reading in synchronism with the displacement of the image projected on the sensor;
- the photosensitive and integrated charge storage areas are combined; the clock generator of such a sensor must manage a single synchronism: that of the cumulative transfer of charges to the reading register with the displacement of the projected image.
- the charge integration time T. is at most equal to the time separating the passage of two columns over the same focusing area of a given observed sector; the speed of rotation of the camera and the image resolution that one ultimately wishes to obtain govern the timing of the charge transfers to be applied.
- an integration time of 100 ⁇ s is compatible with a DTC sensor (of 512x512 or 1024x1024) pixels of one of the two types chosen, the transfer times to the memory registers being of the order of a few microseconds for the sensor line spacing and less than the microsecond for the frame transfer sensor.
- the sensitivity of the system is multiplied by a factor n, going from a photodetector made up of a single array of cells to a surface sensor made up of n columns of cells, the noise introduced by the transfer of charges from an array to the other being negligible compared to the noise resulting from the transfer of the charges in the shift reading register.
- This first embodiment implemented using a DTC sensor with adapted chronometry, has the main objective of increasing the sensitivity of the detection system.
- a matrix sensor does not allow this sensitivity to be adjusted, only a masking of part of the matrix authorizes a mechanical solution to such an adjustment.
- a second embodiment of a panoramic camera according to the invention incorporates a sensor more specifically adapted to "panoramic in TDI mode" exploration on which the invention is based.
- the structural organization of this sensor allows, in addition to the increase in sensitivity:
- FIG. 4 illustrates such a system shown flat and composed of k photodetector modules, distributed over the periphery of the turret 7.
- the panoramic camera which incorporates such a system then includes an optical system for focusing the field of observation on the turret as that it successively focuses, and in the same way, a given observation sector on each bar which is superimposed on the image area of this sector.
- the optical system consists, for example, of the cylindrical lens of Figure 3 but, this time, of revolution around the axis of rotation of the turret.
- Each of the modules ML to M is composed of n columns of P photosensitive cells, respectively b_ ... . . b_. , t> 21 "''fc> 2n '.., ⁇ kl' , - ⁇ kn ' and ⁇ a re S is t re with offset shift R_. to R., respectively associated.
- the outputs of these registers are connected to amplifiers, respectively A 1 ,..., A k .
- Each output S. to S, of each amplifier delivers a voltage whose variation in level reflects the variation in luminance between a line of a photodetector module and the next line of this same module.
- the quantity of charges represents, for the associated line j, the level of cumulative luminance of an elementary zone of the analyzed field whose image is located at a height H.; this ha ititer Hj corresponds to the position of the line j in the photodetector module and of the stage E. of the associated register.
- the optical system 11 successively forms the image of a given portion of space on each of the k modules of the system photodetector 12 disposed on a support 7.
- a comparator-selector 13 processes the signals coming from the outputs S _. to S, supplied by the k outputs after amplification; the comparator-selector 13 measures the contrast of the image by comparison between the differences in levels of a given signal; the comparator-selector 13 then delivers a control signal to a sequencing circuit 14 for the selection of the number of columns, from 1 to n, contributing to the integration of charges by comparison of the contrast thus measured with a predetermined reference value.
- the sequencer 14 then ensures synchronization between:
- the sequencer 14 applies control signals to the clocks 15, 18 of the photodetector system mr synchronizing the transfer of charges, for a nor.ibre of strips predetermined by the comparator 13 and the speed of rotation of the system.
- a discriminator 20 also collects the signals coming from the outputs S_. at S, read registers to store them and compare their values, stage by stage, that is to say for the lines of cells of the photodetector modules located at the same height.
- the panoramic camera according to the invention has:
- This sensitivity is a function the number of arrays involved in each photodetector module for integrating the charges, this number varying between 1 and n. This number is such that a predetermined illumination or contrast threshold is observed or reached, the comparison between the illumination or contrast values being carried out at the level of the comparator-selector 13.
- the distinction between a target detection and noise peak is obtained from the comparison of the levels of the signals S_. to S, for the same stage of the read registers, that is to say for the same height of cell lines of each of the photodetector modules.
- These levels stored in the discriminator 20 are compared for the same line height and, when a correlation of values appears for levels corresponding to the same line height, the alarm 21 is triggered by means of a control signal coming from the discriminator 20 without having to wait for a complete revolution of the rotation system.
- FIG. 6 is a block diagram illustrating such a standby system. It comprises a panoramic camera 31, such as that shown in FIG. 5, and measurement sensors 33 and 34 measuring respectively the speed of rotation of the camera and the movements of the support vehicle 32 relative to a frame of reference.
- a central processing unit 35 gathers the information coming from the sensors 33 and 34, and see Icule the correction signals to be applied to the signal delivered by the camera 31 as follows: the unit 35 calculates the coefficients of a spatial filtering temporal F having the same effects as the rotational speed errors of In camera and those consecutive to the movements of the support vehicle 32, then the coefficients of the inverse spatio-temporal filter F; to apply the correction signals, a transform of
- a processing stage 37 then performs the reverse filtering F from the coefficients delivered by the unit 35 on the output signal of floor 36; a processing stage 30 finally makes it possible to return to temporal mode, by applying the inverse Fourier transform TF, in order to deliver a corrected final signal.
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Studio Devices (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9009967A FR2665600A1 (fr) | 1990-08-03 | 1990-08-03 | Procede de detection pour camera panoramique, camera pour sa mise en óoeuvre, et systeme de veille equipe d'une telle camera. |
| FR90/09967 | 1990-08-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1992003016A2 true WO1992003016A2 (fr) | 1992-02-20 |
| WO1992003016A3 WO1992003016A3 (fr) | 1992-05-29 |
Family
ID=9399413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR1991/000642 Ceased WO1992003016A2 (fr) | 1990-08-03 | 1991-08-02 | Camera panoramique du type a transfert de charges dans un systeme de veille |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5262852A (fr) |
| EP (1) | EP0497945A1 (fr) |
| FR (1) | FR2665600A1 (fr) |
| WO (1) | WO1992003016A2 (fr) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2709631A1 (fr) * | 1992-10-20 | 1995-03-10 | Thomson Csf | Procédé d'imagerie panoramique de surveillance et d'identification intégrant une caméra à balayage et système de mise en Óoeuvre. |
| EP0656532A3 (fr) * | 1993-12-03 | 1996-03-20 | Murata Manufacturing Co | Détecteur des sources thermiques. |
| FR2739192A1 (fr) * | 1995-09-22 | 1997-03-28 | Thomson Csf | Dispositif de veille panoramique optronique a grande vitesse |
| EP0886438A3 (fr) * | 1994-08-09 | 1999-03-17 | Canon Kabushiki Kaisha | Dispositif de prise d'images et appareil de lecture d'images l'utilisant |
Families Citing this family (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2989364B2 (ja) * | 1992-03-12 | 1999-12-13 | シャープ株式会社 | 画像処理装置及び画像処理方法 |
| US5428392A (en) * | 1992-11-20 | 1995-06-27 | Picker International, Inc. | Strobing time-delayed and integration video camera system |
| FR2727215B1 (fr) | 1994-11-18 | 1996-12-20 | Thomson Csf | Dispositif de veille panoramique infrarouge statique a detecteurs matriciels multiples |
| US5612533A (en) * | 1994-12-27 | 1997-03-18 | Siemens Corporate Research, Inc. | Low-profile horizon-sampling light sensor |
| US5790183A (en) * | 1996-04-05 | 1998-08-04 | Kerbyson; Gerald M. | High-resolution panoramic television surveillance system with synoptic wide-angle field of view |
| US6459451B2 (en) | 1996-06-24 | 2002-10-01 | Be Here Corporation | Method and apparatus for a panoramic camera to capture a 360 degree image |
| US6493032B1 (en) | 1996-06-24 | 2002-12-10 | Be Here Corporation | Imaging arrangement which allows for capturing an image of a view at different resolutions |
| US6331869B1 (en) | 1998-08-07 | 2001-12-18 | Be Here Corporation | Method and apparatus for electronically distributing motion panoramic images |
| US6373642B1 (en) | 1996-06-24 | 2002-04-16 | Be Here Corporation | Panoramic imaging arrangement |
| US6043837A (en) | 1997-05-08 | 2000-03-28 | Be Here Corporation | Method and apparatus for electronically distributing images from a panoptic camera system |
| US6466254B1 (en) | 1997-05-08 | 2002-10-15 | Be Here Corporation | Method and apparatus for electronically distributing motion panoramic images |
| US6356296B1 (en) | 1997-05-08 | 2002-03-12 | Behere Corporation | Method and apparatus for implementing a panoptic camera system |
| JP3679558B2 (ja) * | 1997-07-31 | 2005-08-03 | アルプス電気株式会社 | 境界線の検出方法およびこの検出方法を用いた磁気ヘッドの位置決め方法および位置決め装置 |
| US6924832B1 (en) | 1998-08-07 | 2005-08-02 | Be Here Corporation | Method, apparatus & computer program product for tracking objects in a warped video image |
| US6023588A (en) * | 1998-09-28 | 2000-02-08 | Eastman Kodak Company | Method and apparatus for capturing panoramic images with range data |
| US6369818B1 (en) | 1998-11-25 | 2002-04-09 | Be Here Corporation | Method, apparatus and computer program product for generating perspective corrected data from warped information |
| FR2787275B1 (fr) | 1998-12-15 | 2001-02-23 | Thomson Csf | Camera numerique et procede de commande numerique associe |
| US6175454B1 (en) | 1999-01-13 | 2001-01-16 | Behere Corporation | Panoramic imaging arrangement |
| US8520138B1 (en) | 2000-07-07 | 2013-08-27 | Ansen B. Seale | Digital panoramic camera with features for enhanced image quality and improved user interface |
| JP3849645B2 (ja) * | 2003-01-20 | 2006-11-22 | ソニー株式会社 | 監視装置 |
| US7117090B2 (en) * | 2003-08-28 | 2006-10-03 | Siemens Aktiengesellschaft | Moving vehicle in cuboidal panorama |
| DE10342388A1 (de) * | 2003-09-13 | 2005-04-07 | Hella Kgaa Hueck & Co. | Optoelektronische Überwachungseinrichtung für Kraftfahrzeuge |
| EP1536633A1 (fr) * | 2003-11-27 | 2005-06-01 | Sony Corporation | Appareil photographique et méthode, système de supervision, programme et medium d'enregistrement |
| FR2932635B1 (fr) * | 2008-06-17 | 2011-03-18 | Centre Nat Etd Spatiales | Capteur d'image du type tdi a dynamique auto adaptee par point image |
| DE102014218119B4 (de) * | 2014-09-10 | 2021-03-04 | Siemens Healthcare Gmbh | Patiententransportsystem |
| RU2720581C1 (ru) * | 2019-07-19 | 2020-05-12 | Вячеслав Михайлович Смелков | Устройство компьютерной системы панорамного телевизионного наблюдения |
| RU2721381C1 (ru) * | 2019-08-12 | 2020-05-19 | Вячеслав Михайлович Смелков | Устройство компьютерной системы панорамного телевизионного наблюдения с повышенной разрешающей способностью |
| RU2723640C1 (ru) * | 2019-12-09 | 2020-06-17 | Вячеслав Михайлович Смелков | Устройство компьютерной системы панорамного телевизионного наблюдения с повышенной разрешающей способностью |
| RU2727920C9 (ru) * | 2020-01-27 | 2020-08-06 | Вячеслав Михайлович Смелков | Устройство компьютерной системы панорамного телевизионного наблюдения с селективным масштабированием изображения |
| DE102023101189B4 (de) * | 2023-01-18 | 2025-11-27 | Cariad Se | Bildsensormatrixeinheit, Bildsensoreinrichtung, Verfahren zum Erstellen eines Gesamtbildes einer Umgebung, Bildsensorvorrichtung, Kraftfahrzeug, Computerprogramm und computerlesbares Speichermedium |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1813414A1 (de) * | 1968-12-07 | 1970-06-25 | Philips Patentverwaltung | Optisches Panoramageraet zur Feststellung des Azimutwinkels bewegter Objekte |
| US4280141A (en) * | 1978-09-22 | 1981-07-21 | Mccann David H | Time delay and integration detectors using charge transfer devices |
| FR2495870A1 (fr) * | 1980-12-09 | 1982-06-11 | Thomson Csf | Dispositif de protection d'une diode laser |
| US4382267A (en) * | 1981-09-24 | 1983-05-03 | Rca Corporation | Digital control of number of effective rows of two-dimensional charge-transfer imager array |
| FR2524748A1 (fr) * | 1982-04-02 | 1983-10-07 | Thomson Csf | Circuit numerique d'alignement de niveau d'un signal analogique |
| FR2533056B1 (fr) * | 1982-09-14 | 1987-05-15 | Thomson Csf | Imageur a transfert de lignes et camera de television comportant un tel imageur |
| GB2157526B (en) * | 1983-05-16 | 1986-08-28 | Barr & Stroud Ltd | Imaging systems |
| DE3344798C2 (de) * | 1983-12-10 | 1986-03-27 | Eltro GmbH, Gesellschaft für Strahlungstechnik, 6900 Heidelberg | Strahlungsdetektionsverfahren |
| US4612575A (en) * | 1984-07-24 | 1986-09-16 | E-Systems, Inc. | T.V. video image correction |
| EP0185485A3 (fr) * | 1984-12-10 | 1988-03-16 | British Aerospace Public Limited Company | Systèmes de surveillance |
| JPS62220807A (ja) * | 1986-03-20 | 1987-09-29 | Toshiba Corp | スタ−スキヤナ |
| FR2597648B1 (fr) * | 1986-04-22 | 1992-09-11 | Thomson Csf | Circuit d'echantillonnage et maintien de signal a faible residu d'echantillonnage et utilisation de ce circuit au double echantillonnage correle de signaux |
| JPS6416176A (en) * | 1987-07-10 | 1989-01-19 | Nec Corp | High speed vtr |
| FR2618900B1 (fr) * | 1987-07-31 | 1989-12-01 | Thomson Csf | Systeme detecteur d'impulsions lumineuses a taux de fausse alarme tres reduit, utilisable pour la detection laser |
| US4870293A (en) * | 1988-05-20 | 1989-09-26 | General Electric Company | Extended-width CCD imager array capable of time-delay-integration operation |
| EP0354067A3 (fr) * | 1988-08-04 | 1991-04-10 | Gec Avionics, Inc. | Détecteur de différence spectrale dans l'infrarouge |
-
1990
- 1990-08-03 FR FR9009967A patent/FR2665600A1/fr not_active Withdrawn
-
1991
- 1991-08-02 WO PCT/FR1991/000642 patent/WO1992003016A2/fr not_active Ceased
- 1991-08-02 US US07/844,660 patent/US5262852A/en not_active Expired - Fee Related
- 1991-08-02 EP EP91914534A patent/EP0497945A1/fr not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2709631A1 (fr) * | 1992-10-20 | 1995-03-10 | Thomson Csf | Procédé d'imagerie panoramique de surveillance et d'identification intégrant une caméra à balayage et système de mise en Óoeuvre. |
| EP0656532A3 (fr) * | 1993-12-03 | 1996-03-20 | Murata Manufacturing Co | Détecteur des sources thermiques. |
| US5565683A (en) * | 1993-12-03 | 1996-10-15 | Murata Manufacturing Co., Ltd. | Heat source detector |
| EP0886438A3 (fr) * | 1994-08-09 | 1999-03-17 | Canon Kabushiki Kaisha | Dispositif de prise d'images et appareil de lecture d'images l'utilisant |
| FR2739192A1 (fr) * | 1995-09-22 | 1997-03-28 | Thomson Csf | Dispositif de veille panoramique optronique a grande vitesse |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0497945A1 (fr) | 1992-08-12 |
| WO1992003016A3 (fr) | 1992-05-29 |
| FR2665600A1 (fr) | 1992-02-07 |
| US5262852A (en) | 1993-11-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO1992003016A2 (fr) | Camera panoramique du type a transfert de charges dans un systeme de veille | |
| EP0738074B1 (fr) | Procédé de détection à cycles d'intégration et de lecture répartis pour caméra à balayage, et barrette de détection correspondante | |
| EP2056590B1 (fr) | Procédé de lecture d'une matrice bidimensionnelle de pixels et dispositif pour la mise en oeuvre d'un tel procédé | |
| FR2652695A1 (fr) | Procede et dispositif de visualisation d'images, a correction automatique de defauts par contre-reaction. | |
| FR2523319A1 (fr) | Appareil de mise au point automatique | |
| FR2696843A1 (fr) | Appareil de prise de vues à distance, à haute résolution, pour porteur aérien. | |
| FR2589604A1 (fr) | Appareil pour le chronometrage de courses sportives | |
| FR2604320A1 (fr) | Systeme de prise de vues en videographie rapide utilisant un capteur optique matriciel a transfert de charges | |
| EP0920677B1 (fr) | Procede et dispositif de reconnaissance air-sol pour equipement optronique | |
| FR2740558A1 (fr) | Procede de detection par designation laser et dispositif d'ecartometrie a detecteur matriciel correspondant | |
| FR3048316B1 (fr) | Dispositif de detection d'un spot laser | |
| FR2656700A1 (fr) | Procede de restitution du mouvement d'un mobile par observation d'un symbole forme sur ce dernier et dispositifs pour la mise en óoeuvre du procede. | |
| FR2947132A1 (fr) | Procede et systeme d'imagerie d'une scene etendue mettant en oeuvre un appareil d'imagerie a champ de vue limite | |
| WO2002088756A1 (fr) | Methode et dispositif pour evaluer un parametre d'un object en mouvement | |
| EP0608945B1 (fr) | Viseur d'étoile à matrice de DTC, procédé de détection, et application au recalage d'un engin spatial | |
| FR2605821A1 (fr) | Dispositif pour enregistrer l'image d'elements de surface de bandes de tissu en deplacement | |
| FR3138529A1 (fr) | Acquisition de distances d'un capteur à une scène | |
| FR2633747A1 (en) | Adaptive image-processing system | |
| FR2667702A1 (fr) | Reseau plan de dispositifs a transfert de charge pour detecter la phase d'une lumiere coherente. | |
| EP0393763A1 (fr) | Procédé de correction des dispersions des décalages présentés par les détecteurs photoélectriques et dispositif de correction utilisant un tel procédé | |
| EP4186227B1 (fr) | Capteur pour mesure de distance par temps de vol avec pixel à noeuds memoires multiples | |
| EP0773668A1 (fr) | Procédé d'acquisition d'une image électronique d'une scène utilisant une microbalayage pseudo-aléatoire | |
| FR2551201A1 (fr) | Dispositif pour determiner les variations d'orientation d'un engin spatial | |
| FR2921223A1 (fr) | Correction de tension de sortie de photodetecteur. | |
| FR2673794A1 (fr) | Dispositif de correction de defauts pour systemes d'imagerie. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Kind code of ref document: A2 Designated state(s): US |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A2 Designated state(s): AT BE CH DE DK ES FR GB GR IT LU NL SE |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 1991914534 Country of ref document: EP |
|
| AK | Designated states |
Kind code of ref document: A3 Designated state(s): US |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A3 Designated state(s): AT BE CH DE DK ES FR GB GR IT LU NL SE |
|
| WWP | Wipo information: published in national office |
Ref document number: 1991914534 Country of ref document: EP |
|
| WWW | Wipo information: withdrawn in national office |
Ref document number: 1991914534 Country of ref document: EP |